Product features - UV bacteriostasis /Three layers filter / anion purification/ cup design /intelligent control/digital display. Purification & Bacteriostatic - Combining prevention with thorough purification, Ultraviolet bacteriostasis/High efficiency filtration/Anion purification. UV effective clean from source - Led-uvc uv shortwave does not hurt people, people can be present when the UV function is turned on. Three color light Air quality at a glance: Green-Good air quality, Red-Poor air quality, Orange-Air quality is average. Real-time digital display of in-car air quality - Built-in air quality sensor through the digital display of air quality. No manual operation is required for starting and stopping - Connect the purifier power supply, it start working when it is powered on, and it stop working when it is powered off. Not taking up space, Not afraid of inversion - Designed according to the position of the cup holder in the car, easy and stable installation. 100% new. Product